Window-shade.



W. S. SHAFT.

WINDOW SHADE.

APPUCATION FILED JAN. 18. I915.

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WINDOW SHADE.

APPLICATION FILED .18. ms.

Patented Dec. 31, 1918.

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WINDOW SHADE.

APPLICATION FILED JAN. 18. I915. Patented Dec.

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WINDOW-SHADE.

Specification of Letters IPatent.

Patented Dec. 31, 1918.

Application filed January 18, 1915. Serial no. 2,818.

To alt whom it may concern:

Be it known that I, Wmus S. $H AFT, a citizen of the United States,residing at Faribault, in the county of Rice and State of Minnesota,have invented certain new and useful Improvements in Window- Shades; andI do hereby declare the following to be a full, clear, and exactdescrlptlon of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to window shades and is especially designed as animprovement on, or modification of, the shade disclosed and broadlyclaimed in my prior patent 1,038,005, of date, September 10th, 1912.

Generally stated, the'invention consists of the novel .devices andcombinations of -devices hereinafter described and defined in theclaims.

In the accompanying drawings which illustrate the invention, likecharacters indicate like parts throughout the several views.

Referring to the drawings:

Figure 1 is an elevation looking at the inner side of the window andshowing my improved shadeapplied thereto, the shade being adjusted bothat bottom and top to an intermediate position;

Fig.2 is a vertical section taken on the line m m on Fig. 1;

Figs. 3 and 4 are views corresponding to Fig. 1, but illustratingdifferent adjustments of the shade; t

Fig. 5 is a fragmentary view apartly in elevation and partly in verticsection showing a portion of the window frame and shade;

Fig. 6 is a vertical sectionwith some parts broken away, particularlyshowing the means for securing the upper end of one of the shade guidingrods;

Fig. '7 is a detail in plan showin anchor for securing one of the guider its lower end;

Fig. 8 is a section taken on the line a m on Fig. 7, showing the saidanchor devices secured to the window sill;

Fig. 9 is a fragmentary view in elevation showing the lower portion ofthe shade;

Fig. 10 is a detail in elevation showing one ofthe cord guides;

Fig. 11 is a section taken on the line 00 m on Fig. 10;

Fig. 12 is a plan view showing a key for an at tightening the guiderods; and

Fig. 13 is an end elevation of the key shown in Fig. 12. y i The windowframe is indicated as an entirety by the numeral 1. Extending from topto bottom of the window frame, near the sides thereof, is a'pair oftightly drawn parallel shade guiding rods 2, preferably made from smallsteel wire. At their lower ends, these guide rods 2 are provided-withheads 3 that are passed through bayonet rods 4, and are drawn intosockets 5 of anchoring heads 6, which latter, as shown, are rigidlybutdetachably secured to the sill of the window frame by screws 7 (seeparticularly Figs. 7 and 8). At their upper ends, the guide rods 2 arepassed through axial passages in externally threaded plugs 8 that serveas tightening heads. After the guide rods 2 are passed through the saidplugs 8, their ends are bent or offset so that they cannot be drawn backthrough the axial perforations of said plugs (see. particularly Fig. 6).The said plugs 8 are screwed into internally threaded sleeves-9 that areanchored in the tops of the window frames 1.

The expanded outer portion of the rods 4 permit the lower end heads 3 ofthe guide rods 2 to be passed downward therethrough, and the contractedportions of said rods laid in the'sockets 5, so that when the rods aretightened, they cannot be displaced at their lower ends. For tighteningthe rods 2, I provide a key 10 (see particularly Figs. 12 and 13) whichhas a longitudinal slot 11 adapting it to be placed on the guide rodwith its axis registering with the axis of said rod; At its end,-thestem of the key 10 is provided with lugs 12 adapted to entercorrespondin notches formed in the lower end of the p ug 8. Hence, whenthe key is applied as ust indicated, it may be turned around the guiderod and the plug 8 adjusted so as to put the proper tension on the guiderod. The above noted rotary movement of the plug 8, as is evident, doesnot twist the guide rod to any considerable extent, as the said guiderod is swiveled thereto.

The window shade proper is indicated by the numeral 13 and is of somesuitable flexible material, preferably a fabric. Near its verticaledges, the shade 13 is provided with properly spaced eyelets 14throughwvhich the guide rods 2' are alternately passed in such mannerthat the shade is drawn together to form an accordion plaiting, and

hence, occupying a minimum' of space, (see particularly Figs. 2 and 4).Cleats 15, preferably of wood, are secured to the upper and lower edgesof the shade. Shade ad ustmg cords 16 and 17 are attached, respectively,to the lower and upper cleats 15. The cord 16 is passed freelythrough aperforation removable with this bar 1 (see particularly Figs. 5 and 6),the said bar 1 is formed with a longitudinal groove within which is setsmall arched channel-shaped cord guides 20, best shown in detail inFigs. 10 and 11. Both ofthe. adjusting cords 16 and 17 after passingupward over the inner, and outward of the shade over the outer guides20, are passed again downward through perforations in the said bar 1,and are brought down within easy reach of a person standing on thefloor, and are adapted to be adjustably secured by fasteners 21 of anysuitable type, (see particularly Figs. 1 and 2). As an importantfeature, the lower end of the cord 16 that is at tached to the lowercleat 15 provided with a stiflened lower portion that is rigidlyanchored to the said lower cleat. Preferably, this is done by employinga still wire 22 which is passed through and; clenched into the centralportion of the lower cleat 15 and is passed upward into the interior ofthe expanded lower end of the said cord 16 (see particularly Fig. 9).This stifiened portion of the lower portion of the cord 16, in length,should be slightly less than the distance through the folded shade, sothat the said stiffened portion will not prevent. the adjustment of theshade shown in Fig. 4. The purpose of the stifi'ened. lower end portionof the cord or cable 16 is to give greater lifting stability to thelower cleat-15.. It has the effect of providing the said lower cleatwith the. rigid upward extension to which the cord is attached, with theresult that the tendency .to raise the lower portion greatly increased.

The overhead supporting bar 1 is preferably made as a part of the shadeattachment and it is important to note that all of the parts of'theshade are attached thereto, and are removable therewith dow. For theapplication thereof to the window, it is only necessary to attach theequally, at its opposite sides, is p from the. win

said bar 1, properly to the window frame, and to attach the anchoringheads 6 to the window sill.

By passing one of the lifting cords or cables alternately through thefolds of the shade, it is utilized as a means for main taining thecentral portion of the shade in proper plaited form, and for causing-thesame always to fold properly at its intermediate portion. This featureis especially important when the window shade is wide, and

when it is made of Very light material.

Various difi'erent adjustments of the shade are shown in the drawings.Fig. 3 shows the shade extended to close the window passed throughperforations in the alter-' nated folds of the shade, and on which theshade, as thus applied, can freely slide either in the window opemng.

What I claim is: 1. The combination with vertical guides and meansforattaching the same to a supporting frame, of a plaited shade free forvertical movements at upper and lower into open up, close up, or toshift its'position.

termediate portions and having near its edges, perforations throughwhich said guides are passed alternately, and adjusting cords extendedabove said shade, one thereof being attached to the upper portion ofsaid shade and the other being passed alternately through perforationsin the intermediate portions of the folds of said shade, in the samemanner as are the said guides, and

attached to the lower portion of said-shade.

2. The combination with a supporting bar,

of vertical guides attached thereto a plaited.

shade free for vertical movements at upper and lower intermediateportions and having near its edges perforations through which saidguides are alternately passed, adjusting cords extending above saidshade, one thereof being attached to the upper portion of said shade,the other being passed alternately through perforations in theintermediate portions of the folds of said shade, in the same manner asare said guides, and

attached to the lower portion of said shade,

and pulleys carried around which said passed. 7

3. The combination with vertical guides, of a plaited shade mounted toslide vertically on said guides, a cleat applied to the by thesupporting bar ad usting cords are low r edge of said shade, and anadjusting cor having a rigid lower end portion rigidly anchored totheintermediate portion of said cleat, adapted to pass through theperforations of closed folds.

J 4. The combination 'withvertical guides and ,a plaited shade mountedto slide vertically thereon, of a cleat applied to the loweredge of saidshadeand an adjusting cord passed through perforations in'theintermediate portions of the alternated folds of said shade, and havinga rigid lower end portion rigidly secured to an intermediate portion ofsaid cleat, adapted to pass in presence of two wimesses.

- Witnesses:

JOHN K. Gom, I C. D. MOGREW.

